P0496 GMC Envoy

One of the most common trouble codes with the GMC Envoy is the P0496 code. This code number references a number that is given to you when you plug your Envoy into an OBDII scanner. GMC Envoy P0496 Symptoms P0496 code in the GMC Envoy will often be accompanied by an erratic idle. The engine … Read more

GMC Envoy P0420: Meaning, Causes, + How to Fix

This page is meant to help you troubleshoot the GMC Envoy P0420 trouble code. It covers the P0420 code’s meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. Table … Read more